Simplify local docker build

.dockerignore

@@ -0,0 +1,3 @@
+vendor/
+dist/
+docker-compose.override.yml

Makefile

@@ -31,3 +31,6 @@ build:
 			-w /go/src/github.com/pottava/aws-s3-proxy \
 			supinf/go-gox:1.11 --osarch "linux/amd64 darwin/amd64 windows/amd64" \
 			-ldflags "-s -w" -output "dist/{{.OS}}_{{.Arch}}"
+
+build-local:
+	@docker-compose -f docker-compose.local.yml build

docker-compose.local.yml

@@ -0,0 +1,8 @@
+version: "3"
+
+services:
+  app:
+    build:
+      dockerfile: docker/local/Dockerfile
+      context: .
+    image: pottava/s3-proxy:local

docker/local/Dockerfile

@@ -0,0 +1,20 @@
+FROM golang:1.13.7-alpine3.11 AS builder
+RUN apk --no-cache add gcc musl-dev git
+WORKDIR /go/src/github.com/pottava/aws-s3-proxy
+COPY . .
+ARG APP_VERSION=local
+RUN go mod download
+RUN go mod verify
+RUN githash=$(git rev-parse --short HEAD 2>/dev/null) \
+    && today=$(date +%Y-%m-%d --utc) \
+    && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
+    -ldflags "-s -w -X main.ver=${APP_VERSION} -X main.commit=${githash} -X main.date=${today}" \
+    -o /app
+
+FROM alpine:3.11 AS libs
+RUN apk --no-cache add ca-certificates
+
+FROM scratch
+COPY --from=libs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /app /aws-s3-proxy
+ENTRYPOINT ["/aws-s3-proxy"]